I don’t know how far I want to go with this topic, but it did catch my eye this morning.

“A study just published in the Geophysical Research Letters estimates that ammonia emissions due to dairy cattle in the Southern California air basin (SoCAB) could be almost triple the tonnage of ammonia emissions from automobiles. Ammonia serves as a key ingredient in the recipe for smog.

Are drivers off the hook, while smog fighters refocus on the Los Angeles milk suppliers?,” asks the story on Tree Hugger today. Read more:  Cow Farts